I screwed up freshman year in one class causing me to get a 3.6. I am doing 5 all ap classes in sophomore through senior. Is it possible to get a 3.6 to a 4.0?
For a semester? Yes. Cumulatively? If you’re talking unweighted, no. Strive on keeping an upward trend and don’t focus on the past, which you cannot change.
Freshman year is relatively less important than sophomore or junior year. A small number of schools (mostly in California or Canada) don’t even consider freshman year at all. Probably pretty nearly no school anywhere will be too concerned about one bad class freshman year.
Do the best that you can from now on and you will be fine.
It is weighted
What would be the max gpa I could get assuming I do all ap
Nobody can answer the question, since we do not know the grading scale at your HS. Your weighted GPA only matters in the context of your HS (e.g. for ranking).
3.6 isn’t bad. And colleges like to see that you are doing better in harder courses.